linux-kernel - [RFC 09/11] dt-bindings: soc: realtek: rtd1195-chip: Extend reg node again

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Date:   Sun,  3 Nov 2019 02:36:43 +0100
From:   Andreas Färber <afaerber@...e.de>
To:     linux-realtek-soc@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andreas Färber <afaerber@...e.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: [RFC 09/11] dt-bindings: soc: realtek: rtd1195-chip: Extend reg node again

Allow to optionally specify a third register to identify the chip.
Whether needed and which register to specify depends on the family;
RTD1295 family will want an efuse register.

Signed-off-by: Andreas Färber <afaerber@...e.de>
---
 I don't like specifying an efuse register here, which seems its own IP block.
 
 .../devicetree/bindings/soc/realtek/realtek,rtd1195-chip.yaml    | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/soc/realtek/realtek,rtd1195-chip.yaml b/Documentation/devicetree/bindings/soc/realtek/realtek,rtd1195-chip.yaml
index e431cf559b66..249737e116d7 100644
--- a/Documentation/devicetree/bindings/soc/realtek/realtek,rtd1195-chip.yaml
+++ b/Documentation/devicetree/bindings/soc/realtek/realtek,rtd1195-chip.yaml
@@ -19,7 +19,7 @@ properties:
 
   reg:
     minItems: 1
-    maxItems: 2
+    maxItems: 3
 
 required:
   - compatible
@@ -37,4 +37,11 @@ examples:
         reg = <0x9801a200 0x8>,
               <0x98007028 0x4>;
     };
+  - |
+    chip-info@...1a200 {
+        compatible = "realtek,rtd1195-chip";
+        reg = <0x9801a200 0x8>,
+              <0x98007028 0x4>,
+              <0x980171d8 0x4>;
+    };
 ...
-- 
2.16.4